mac80211: add support for HE (41cbb0f5) · Commits · e / devices / android_kernel_fairphone_FP5

include/net/mac80211.h

+55 −9

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@
		#include <linux/ieee80211.h>
		#include <net/cfg80211.h>
		#include <net/codel.h>
		#include <net/ieee80211_radiotap.h>
		#include <asm/unaligned.h>

		/**
		@@ -162,6 +163,8 @@ enum ieee80211_ac_numbers {
		* @txop: maximum burst time in units of 32 usecs, 0 meaning disabled
		* @acm: is mandatory admission control required for the access category
		* @uapsd: is U-APSD mode enabled for the queue
		* @mu_edca: is the MU EDCA configured
		* @mu_edca_param_rec: MU EDCA Parameter Record for HE
		*/
		struct ieee80211_tx_queue_params {
		u16 txop;
		@@ -170,6 +173,8 @@ struct ieee80211_tx_queue_params {
		u8 aifs;
		bool acm;
		bool uapsd;
		bool mu_edca;
		struct ieee80211_he_mu_edca_param_ac_rec mu_edca_param_rec;
		};

		struct ieee80211_low_level_stats {
		@@ -463,6 +468,15 @@ struct ieee80211_mu_group_data {
		* This structure keeps information about a BSS (and an association
		* to that BSS) that can change during the lifetime of the BSS.
		*
		* @bss_color: 6-bit value to mark inter-BSS frame, if BSS supports HE
		* @htc_trig_based_pkt_ext: default PE in 4us units, if BSS supports HE
		* @multi_sta_back_32bit: supports BA bitmap of 32-bits in Multi-STA BACK
		* @uora_exists: is the UORA element advertised by AP
		* @ack_enabled: indicates support to receive a multi-TID that solicits either
		* ACK, BACK or both
		* @uora_ocw_range: UORA element's OCW Range field
		* @frame_time_rts_th: HE duration RTS threshold, in units of 32us
		* @he_support: does this BSS support HE
		* @assoc: association status
		* @ibss_joined: indicates whether this station is part of an IBSS
		* or not
		@@ -550,6 +564,14 @@ struct ieee80211_mu_group_data {
		*/
		struct ieee80211_bss_conf {
		const u8 *bssid;
		u8 bss_color;
		u8 htc_trig_based_pkt_ext;
		bool multi_sta_back_32bit;
		bool uora_exists;
		bool ack_enabled;
		u8 uora_ocw_range;
		u16 frame_time_rts_th;
		bool he_support;
		/* association related data */
		bool assoc, ibss_joined;
		bool ibss_creator;
		@@ -1106,6 +1128,18 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
		* @RX_FLAG_AMPDU_EOF_BIT: Value of the EOF bit in the A-MPDU delimiter for this
		* frame
		* @RX_FLAG_AMPDU_EOF_BIT_KNOWN: The EOF value is known
		* @RX_FLAG_RADIOTAP_HE: HE radiotap data is present
		* (&struct ieee80211_radiotap_he, mac80211 will fill in
		* - DATA3_DATA_MCS
		* - DATA3_DATA_DCM
		* - DATA3_CODING
		* - DATA5_GI
		* - DATA5_DATA_BW_RU_ALLOC
		* - DATA6_NSTS
		* - DATA3_STBC
		* from the RX info data, so leave those zeroed when building this data)
		* @RX_FLAG_RADIOTAP_HE_MU: HE MU radiotap data is present
		* (&struct ieee80211_radiotap_he_mu)
		*/
		enum mac80211_rx_flags {
		RX_FLAG_MMIC_ERROR = BIT(0),
		@@ -1134,6 +1168,8 @@ enum mac80211_rx_flags {
		RX_FLAG_ICV_STRIPPED = BIT(23),
		RX_FLAG_AMPDU_EOF_BIT = BIT(24),
		RX_FLAG_AMPDU_EOF_BIT_KNOWN = BIT(25),
		RX_FLAG_RADIOTAP_HE = BIT(26),
		RX_FLAG_RADIOTAP_HE_MU = BIT(27),
		};

		/**
		@@ -1164,6 +1200,7 @@ enum mac80211_rx_encoding {
		RX_ENC_LEGACY = 0,
		RX_ENC_HT,
		RX_ENC_VHT,
		RX_ENC_HE,
		};

		/**
		@@ -1198,6 +1235,9 @@ enum mac80211_rx_encoding {
		* @encoding: &enum mac80211_rx_encoding
		* @bw: &enum rate_info_bw
		* @enc_flags: uses bits from &enum mac80211_rx_encoding_flags
		* @he_ru: HE RU, from &enum nl80211_he_ru_alloc
		* @he_gi: HE GI, from &enum nl80211_he_gi
		* @he_dcm: HE DCM value
		* @rx_flags: internal RX flags for mac80211
		* @ampdu_reference: A-MPDU reference number, must be a different value for
		* each A-MPDU but the same for each subframe within one A-MPDU
		@@ -1211,7 +1251,8 @@ struct ieee80211_rx_status {
		u32 flag;
		u16 freq;
		u8 enc_flags;
		u8 encoding:2, bw:3;
		u8 encoding:2, bw:3, he_ru:3;
		u8 he_gi:2, he_dcm:1;
		u8 rate_idx;
		u8 nss;
		u8 rx_flags;
		@@ -1770,6 +1811,7 @@ struct ieee80211_sta_rates {
		* @supp_rates: Bitmap of supported rates (per band)
		* @ht_cap: HT capabilities of this STA; restricted to our own capabilities
		* @vht_cap: VHT capabilities of this STA; restricted to our own capabilities
		* @he_cap: HE capabilities of this STA
		* @max_rx_aggregation_subframes: maximal amount of frames in a single AMPDU
		* that this station is allowed to transmit to us.
		* Can be modified by driver.
		@@ -1805,7 +1847,8 @@ struct ieee80211_sta {
		u16 aid;
		struct ieee80211_sta_ht_cap ht_cap;
		struct ieee80211_sta_vht_cap vht_cap;
		u8 max_rx_aggregation_subframes;
		struct ieee80211_sta_he_cap he_cap;
		u16 max_rx_aggregation_subframes;
		bool wme;
		u8 uapsd_queues;
		u8 max_sp;
		@@ -2196,10 +2239,11 @@ enum ieee80211_hw_flags {
		* it shouldn't be set.
		*
		* @max_tx_aggregation_subframes: maximum number of subframes in an
		* aggregate an HT driver will transmit. Though ADDBA will advertise
		* a constant value of 64 as some older APs can crash if the window
		* size is smaller (an example is LinkSys WRT120N with FW v1.0.07
		* build 002 Jun 18 2012).
		* aggregate an HT/HE device will transmit. In HT AddBA we'll
		* advertise a constant value of 64 as some older APs crash if
		* the window size is smaller (an example is LinkSys WRT120N
		* with FW v1.0.07 build 002 Jun 18 2012).
		* For AddBA to HE capable peers this value will be used.
		*
		* @max_tx_fragments: maximum number of tx buffers per (A)-MSDU, sum
		* of 1 + skb_shinfo(skb)->nr_frags for each skb in the frag_list.
		@@ -2216,6 +2260,8 @@ enum ieee80211_hw_flags {
		* the default is _GI \| _BANDWIDTH.
		* Use the %IEEE80211_RADIOTAP_VHT_KNOWN_\* values.
		*
		* @radiotap_he: HE radiotap validity flags
		*
		* @radiotap_timestamp: Information for the radiotap timestamp field; if the
		* 'units_pos' member is set to a non-negative value it must be set to
		* a combination of a IEEE80211_RADIOTAP_TIMESTAMP_UNIT_* and a
		@@ -2263,8 +2309,8 @@ struct ieee80211_hw {
		u8 max_rates;
		u8 max_report_rates;
		u8 max_rate_tries;
		u8 max_rx_aggregation_subframes;
		u8 max_tx_aggregation_subframes;
		u16 max_rx_aggregation_subframes;
		u16 max_tx_aggregation_subframes;
		u8 max_tx_fragments;
		u8 offchannel_tx_hw_queue;
		u8 radiotap_mcs_details;
		@@ -2904,7 +2950,7 @@ struct ieee80211_ampdu_params {
		struct ieee80211_sta *sta;
		u16 tid;
		u16 ssn;
		u8 buf_size;
		u16 buf_size;
		bool amsdu;
		u16 timeout;
		};

net/mac80211/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -12,6 +12,7 @@ mac80211-y := \
		scan.o offchannel.o \
		ht.o agg-tx.o agg-rx.o \
		vht.o \
		he.o \
		ibss.o \
		iface.o \
		rate.o \

net/mac80211/agg-rx.c

+8 −2

Original line number	Diff line number	Diff line
		@@ -245,6 +245,7 @@ void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
		};
		int i, ret = -EOPNOTSUPP;
		u16 status = WLAN_STATUS_REQUEST_DECLINED;
		u16 max_buf_size;

		if (tid >= IEEE80211_FIRST_TSPEC_TSID) {
		ht_dbg(sta->sdata,
		@@ -268,13 +269,18 @@ void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
		goto end;
		}

		if (sta->sta.he_cap.has_he)
		max_buf_size = IEEE80211_MAX_AMPDU_BUF;
		else
		max_buf_size = IEEE80211_MAX_AMPDU_BUF_HT;

		/* sanity check for incoming parameters:
		* check if configuration can support the BA policy
		* and if buffer size does not exceeds max value */
		/* XXX: check own ht delayed BA capability?? */
		if (((ba_policy != 1) &&
		(!(sta->sta.ht_cap.cap & IEEE80211_HT_CAP_DELAY_BA))) \|\|
		(buf_size > IEEE80211_MAX_AMPDU_BUF_HT)) {
		(buf_size > max_buf_size)) {
		status = WLAN_STATUS_INVALID_QOS_PARAM;
		ht_dbg_ratelimited(sta->sdata,
		"AddBA Req with bad params from %pM on tid %u. policy %d, buffer size %d\n",
		@@ -283,7 +289,7 @@ void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
		}
		/* determine default buffer size */
		if (buf_size == 0)
		buf_size = IEEE80211_MAX_AMPDU_BUF_HT;
		buf_size = max_buf_size;

		/* make sure the size doesn't exceed the maximum supported by the hw */
		if (buf_size > sta->sta.max_rx_aggregation_subframes)

net/mac80211/agg-tx.c

+15 −4

Original line number	Diff line number	Diff line
		@@ -463,6 +463,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
		.timeout = 0,
		};
		int ret;
		u16 buf_size;

		tid_tx = rcu_dereference_protected_tid_tx(sta, tid);

		@@ -511,11 +512,22 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
		sta->ampdu_mlme.addba_req_num[tid]++;
		spin_unlock_bh(&sta->lock);

		if (sta->sta.he_cap.has_he) {
		buf_size = local->hw.max_tx_aggregation_subframes;
		} else {
		/*
		* We really should use what the driver told us it will
		* transmit as the maximum, but certain APs (e.g. the
		* LinkSys WRT120N with FW v1.0.07 build 002 Jun 18 2012)
		* will crash when we use a lower number.
		*/
		buf_size = IEEE80211_MAX_AMPDU_BUF_HT;
		}

		/* send AddBA request */
		ieee80211_send_addba_request(sdata, sta->sta.addr, tid,
		tid_tx->dialog_token, params.ssn,
		IEEE80211_MAX_AMPDU_BUF_HT,
		tid_tx->timeout);
		buf_size, tid_tx->timeout);
		}

		/*
		@@ -905,8 +917,7 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
		{
		struct tid_ampdu_tx *tid_tx;
		struct ieee80211_txq *txq;
		u16 capab, tid;
		u8 buf_size;
		u16 capab, tid, buf_size;
		bool amsdu;

		capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab);

net/mac80211/cfg.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -1412,6 +1412,11 @@ static int sta_apply_parameters(struct ieee80211_local *local,
		ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
		params->vht_capa, sta);

		if (params->he_capa)
		ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
		(void *)params->he_capa,
		params->he_capa_len, sta);

		if (params->opmode_notif_used) {
		/* returned value is only needed for rc update, but the
		* rc isn't initialized here yet, so ignore it